Method and apparatus for monitoring for leaks in a stage ii fuel vapor recovery system

a technology of vapor recovery system and detection method, which is applied in the direction of liquid transfer device, fluid tightness measurement, instruments, etc., can solve the problem that the escaping fuel vapor can pose a greater threat to the environmen
US20090293592A1Active Publication Date: 2009-12-03FRANKLIN FUELING SYST
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Patent Information

Authority / Receiving Office
US · United States
Patent Type
Applications(United States)
Current Assignee / Owner
FRANKLIN FUELING SYST
Publication Date
2009-12-03

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Abstract

A system and method for detecting a leak in a Stage II vapor recovery system is disclosed. The system may monitor the Stage II vapor recovery system for the occurrence of quiet times and record pressure data during those quiet times. The system may make a determination of a leak based on the evaluation of the pressure data from a plurality of the quiet times.
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Description

RELATED APPLICATIONS

[0001] This application claims the benefit of U.S. Provisional Patent Application Ser. No. 61 / 056,528, filed May 28, 2008, the entire disclosure of which is expressly incorporated by reference herein.

[0002] This application is related to U.S. Provisional Patent Application Ser. No. 61 / 056,522, filed May 28, 2008, the entire disclosure of which is expressly incorporated by reference herein.TECHNICAL FIELD

[0003] This invention relates to a method and apparatus for detecting vapor leaks in a Stage II vapor recovery system.BACKGROUND OF INVENTION

[0004] Historically as fuel was being dispensed into a vehicle's fuel tank, typically from an underground storage tank (UST), vapor in the vehicle's fuel tank would escape into the atmosphere. In order to prevent this, Stage II vapor recovery systems were developed to collect this vapor and return it to the UST.

[0005] Stage II vapor recovery systems recover fuel vapor released from a vehicle's fuel tank as fuel is being dispensed ...

Claims

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